- The first set of GlobWetland II geo-information maps will be produced for 3 points in time (1975-76, 1990-91, 2005-06), on the 200 wetland sites, at a geographical scale of 1:50,000 to 1:100,000, taking full advantage of the time series of Landsat data (MSS, TM and ETM):
- land-use and land-cover maps, including wetland typologies;
- change detection maps for long-term change and trends analysis;
- water cycle maps for the analysis of the annual variations of the water table.
Two types of wetland indicators shall also be produced for the same points in time (1975-76, 1990-91, 2005-2006), making the best use of the wetland geo-information maps produced over the 200 wetland sites:
- Ramsar Indicators of effectiveness (defined by the STRP);
- Indicators on the status and trends of Mediterranean Wetlands (defined by the OMW)
- A second objective of the GlobWetland II project is to analyse on a more detailed scale (1:5,000 scale) 5 wetland sites. This requires the production of land-use and land-cover maps with more complex and detailed wetland typologies. This shall be done using very high spatial resolution (VHR) optical images.
These maps shall be used principally to ana-lyse the status, drivers and pressures of important wetland areas that are amongst the pi-lot sites studied by the Observatory of Mediterranean Wetlands.
A second usage of the VHR optical images, and derived maps, is to be used as validation data sets for the wet-land related geo-information maps and indicators, should ground truth data be lacking in some of the chosen test sites (to be primarily chosen amongst the 5 pilot sites to be stud-ied at the 1:5,000 scale).
- A third objective is to contribute to help the Contracting Parties completing their national wetland inventories and assessing the trends of wetlands inventories across 3 points in time (1975-76, 1990-91, 2005-2006). This wetland inventory will be experimented over a limited geographical area and only as a demonstration exercise to validate the inventory methodology. The inventory will be based on annual time series of Landsat images.
Map production:
- 200 Wetland Information Maps and Indicators (WIMI) derived from Landsat (acquisition dates: 1975/76, 1990/91, 2005/06)
- Inventory and delineation maps for different catchment areas derived from Lansat
- 5 Very High Resolution Maps (VHR) for detailed mapping and validation
- Radar (SAR) and Sentinel2 (S2) demonstration
